Cut circles without anchoring the center pivot to the concrete. Machined out of rigid, non-marring plastic with crosshair sighting slots. Simply stand on the base to weigh down the center pivot. Center Pivot sold separately.Learn More

Special under-cut heads 1/4-20 UC. Used to attach connecting bars together. These screws are NOT standard screws. Use of any other type of screw will result in a loose fit between the bars. Bag of 50. Learn More

Dynamic wheels allow the tool to move freely in any direction. Typically used for cutting small radius circles and arcs when attached to a center pivot. Kit includes (8) wheels, (4) axles and hex wrench. Compatible with Mongoose 411, Mongoose Air and Cobra. Learn More

Used for track-free engraving of free form curves and shapes, or for cutting small radius circles and arcs when attached to a center pivot. Kit includes (4) wheels, (4) axles and hex wrench. Compatible with Mongoose 411, Mongoose Air and Cobra. Learn More

These 4.5" diameter blades fit the Cobra, and are available in the same widths as our Mongoose 411 and Mongoose Air blades. Note: to prevent a thin core blade from spinning between the hub nuts, reverse the outside nut so the raised flanges do not bottom out. Learn More